Transferring Your Program
Because a Hot Standby system requires that identical application programs exist on both the primary and standby PLCs, you must download your application twice, once to each PLC.
The procedure is the same for both PLCs:
Step
|
Action
|
1
|
Connect the PC with Control Expert to a USB port on the PLC
|
2
|
Use the Control Expert command: PLC → Transfer program to PLC
|
NOTE: If your Hot Standby system is already configured and uses an Ethernet IO head, you must stop all your system before downloading a new application (same recommendation after a rebuild all).